When to use group and individual drives
By: by Robert W. Drake ...
Publisher: The Leather Belting Exchange
Published: 1924
Place of publication: Philadelphia, Pa
Language: eng
Number of pages: 32
Subjects: Electric driving; Factories; Power supply
Notes: Reprinted from Industrial engineer of February March and April, 1924.

Microfilm. New York, N.Y., Columbia University Libraries, 1997. 1 microfilm reel, 35 mm.

Filmed; NEH Project (FMEST); 1997.